Loose Diamonds Search

Judging Diamond Quality

Engagement Rings
View our diamonds here.

What to Look For

If you want to begin judging diamond quality, you must first learn and understand the 4 C’s, which are four characteristics of diamonds that give the gem stone it’s overall value. The 4 C’s for judging diamond quality include the diamond's color, clarity, carats and cut.

Judging Color

Most diamonds are considered to be ideal if they are transparent or colorless. Diamonds that are rated as colorless are the most expensive of diamonds. Diamond colors are rated with an alphabet grading system that starts with “D” and ends with “Z.” Completely colorless diamonds fall in the “D” and “E” grade while colored, fancy diamonds are at the other end of the alphabet, at “Y” and “Z.”

There are two main ways that jewelers use to judge diamond quality based on color. They may pull out a set of reference stones and find the closest match between the diamond and the reference stone to determine its letter grade. Alternatively, the jeweler may use a colorimeter, which can electronically measure the color of the stone and determine its grade within 1/3 of a grade.


Solitaire Rings

Solitaire Rings

Rings With Sidestones

Rings With Sidestones

Matching Bridal Sets

Matching Bridal Sets

Sareen Engagement Rings

Sareen Engagement Rings

Tension Rings

Tension Rings

Three Stone Rings

Three Stone Rings

Tulip Collection

Tulip Collection

Tulip Matching Bridal Sets

Tulip Matching Bridal Sets

Judging Clarity

Diamond clarity refers to whether or not the diamond is clear all the way through, or whether it has tiny flaws and cloudy areas within the gemstone. It’s actually very rare to have a diamond with absolute perfect clarity and no flaws but most diamond flaws are not visible to the naked eye and can only be seen with a magnifying device.

The Gemological Institute of America (GIA) uses a magnification of about 10x when judging diamond quality based on the clarity. There are treatments available to make a diamond appear nicer than it actually is and the treatments should lower the overall price of the diamond so it is important to do your research before purchasing a diamond to be sure you are not spending more money than you should.

Judging Carat Weight

Diamond carat is the term we used to describe the weight of a diamond gemstone. One carat is equivalent to 200 milligrams of weight. A single diamond with a high amount of carat weight is more expensive than the equivalent amount of carats in multiple stones. This is because finding the larger diamonds is much more rare of an occurrence. So, if you want a 2-carat diamond ring, for example, you may decide to go with a half-carat diamond surrounded by smaller diamonds that add up to one and a half carats to give you the total of 2 carats. Judging diamond quality by the amount of carats is difficult since different shaped gemstones and stones with different levels of clarity will be priced differently even if they have the same amount of carats.

Judging Cut

One of the most important factors in judging diamond quality is judging the cut of a diamond. It’s important because a quality diamond cut will be more brilliant and reflects light more beautifully, and yet the cut of a diamond has the least impact on the overall price of the diamond.

When judging diamond quality on the cut of a diamond, look at the stone in a well lit area. If the light seems to go into the stone and bounce back, showing a sparkling reflective surface, the diamond has a good cut. The angles and shapes of a diamond are important to judging diamond quality and the overall appearance of your diamond.

Related Articles



diamonds Best diamond prices online
loose diamonds Free FedEx shipping to the USA
engagement rings No risk 30 day money back guarantee
diamond rings All engagement rings are made in the USA
wedding rings Registered with the Better Business Bureau
certified diamonds Huge selection of high quality diamonds
  More Reasons >>

Thank you we received the rings today and they are stunning. You have exceeded our expectations and I appreciate your wonderful service. Craig has already forwarded your website via email to two different friends who...
Cynthia

View More


Thank you so much for helping us pick out and design our engagement ring and wedding band. They're PERFECT. We love them and have gotten endless compliments. We're so pleased and we will always recommend...
Jay & Becky

View More


Thank you for taking me through this process. It was easier than I could have imagined. The ring looks spectacular; I know my girlfriend will love it. It was a pleasure doing...
Greg

View More


Thank you for your diligence. Much appreciated! Dealing with this company has been a treat. Charlene has been helping me out with all my queries, and she was extremely knowledgeable in all areas....
Gary

View More


Thank you for your help in selecting our engagement ring. You were very patient with all of our questions and we were pleasantly surprised at how beautiful the diamond was. We could not...
Justin

View More


Thank-you for adding the engraving to the order. I am most pleased with your aid, understanding and patience. I do not anticipate corresponding with you again, so therefore I will sign off with...
G

View More


I do buy a lot online, but I research and review countless hours. I wanted a jeweler with superior craftsmanship and experience, while also having a selection that was unlike anything I saw locally. I...
Anthony

View More


Absolutely beautiful. Again, thank you for all your help. I look forward to working with you in the future and letting all my friends know about your website....
Dan

View More


We wanted to thank you for the spectacular and stunning job on our wedding bands, as well as my engagement ring! The quality of the diamonds Novori offers are truly magnificent! The way that the...
Michael & Barbara

View More


I'd just like to tell you that my fiance purchased my engagement ring from you, and it is absolutely beautiful! He had wonderful things to say about his experience with your company. Thank...
Amanda

View More


Hi guys, it's me Bennie and I received my ring today and I must say that I couldn't be happier. It is absolutely gorgeous (can guys say that?). Thank you so much for your patience...
Bennie

View More


Ring arrived today. It looks amazing, Thank you for the hard work to get it together and shipped to me so quickly. Let's hope she says yes!...
Paul

View More


I proposed to my now fiance the other day and she honestly cannot take her eyes off of her ring. I leave for work, she is staring at it, I come home and she...
Zach

View More


I proposed to my fiance earlier this week and it went great! She loved the setting and stone from Novori. I was very happy with the value I got for my money....
Brent

View More


I recently purchased an engagement ring through your site. I just wanted to say thank you for providing such a wonderful product at such a great price. I searched numerous web sites and yours was...
Kendall

View More



Diamond Jewelry Member
Novori BBB


Diamond Rings Payment Options

Credit Card Processing

 
  |    Home  |   Contact Us  |   Payment Policy  |   Return Policy  |   Privacy Policy |   Engagement Rings News  |   Diamonds  |   SiteMap  |  
   
  © 2004-2016 Novori Jewelry Inc. All rights reserved.     Terms and Conditions